Buggy code:
static final int ExpressionStackIncrement = 100 ; protected int expressionPtr ; protected Expression [ ] expressionStack = new Expression [ Parser . ExpressionStackIncrement ] ; protected int expressionLengthPtr ; protected int [ ] expressionLengthStack ; Expression [ ] noExpressions = new Expression [ Parser . ExpressionStackIncrement ] ; protected int identifierPtr ; protected char [ ] [ ] identifierStack ; protected int identifierLengthPtr ; protected int [ ] identifierLengthStack ; protected long [ ] identifierPositionStack ; protected int intPtr ; protected int [ ] intStack ; protected int endPosition ; protected int endStatementPosition ; protected int lParenPos ; protected int rParenPos ; protected int rBraceStart ; protected int rBraceEnd ; protected int rBraceSuccessorStart ; protected boolean optimizeStringLiterals = true ; protected int modifiers ; protected int modifiersSourceStart ; protected int nestedType ; protected int dimensions ; protected int [ ] nestedMethod ; protected int [ ] realBlockStack ; protected int realBlockPtr ; protected boolean diet = false ; protected int dietInt = 0 ; protected int [ ] variablesCounter ; public static byte [ ] rhs = null ; public static char [ ] asb = null ; public static char [ ] asr = null ; public static char [ ] nasb = null ; public static char [ ] nasr = null ; public static char [ ] terminal_index = null ; public static char [ ] non_terminal_index = null ; public static char [ ] term_action = null ; public static byte [ ] term_check = null ; private static final String UNEXPECTED_EOF = "Unexpected<seq2seq4repair_space>End<seq2seq4repair_space>Of<seq2seq4repair_space>File" ; private static final String INVALID_CHARACTER = "Invalid<seq2seq4repair_space>Character" ; private static final String EOF_TOKEN = "$eof" ; private static final String ERROR_TOKEN = "$error" ; public static String [ ] name = null ; public static short [ ] check_table = null ; public static char [ ] lhs = null ; public static char [ ] base_action = Parser . lhs ; public static char [ ] scope_prefix = null ; public static char [ ] scope_suffix = null ; public static char [ ] scope_lhs = null ; public static byte [ ] scope_la = null ; public static char [ ] scope_state_set = null ; public static char [ ] scope_rhs = null ; public static char [ ] scope_state = null ; public static char [ ] in_symb = null ; private static final String FILEPREFIX = "parser" ; public static final int RoundBracket = 0 ; public static final int SquareBracket = 1 ; public static final int CurlyBracket = 2 ; public static final int BracketKinds = 3 ; public Parser ( ProblemReporter problemReporter , boolean optimizeStringLiterals ) { } protected void adjustInterfaceModifiers ( ) { } public final void arrayInitializer ( int length ) { } public static int asi ( int state ) { } protected void blockReal ( ) { } private static final void buildFileOfByteFor ( String filename , String tag , String [ ] tokens ) throws IOException { } private static final void buildFileOfIntFor ( String filename , String tag , String [ ] tokens ) throws IOException { } private static final void buildFileOfShortFor ( String filename , String tag , String [ ] tokens ) throws IOException { } private static final void buildFileForName ( String filename , String contents ) throws IOException { } private static final void buildFileForTable ( String filename , char [ ] chars ) throws IOException { } private static final void buildFileForTable ( String filename , byte [ ] bytes ) throws IOException { } public static final void buildFilesFromLPG ( String dataFilename ) throws IOException { } public RecoveredElement buildInitialRecoveryState ( ) { } public static final short base_check ( int i ) { } public boolean checkAndReportBracketAnomalies ( ) { } public final void checkAndSetModifiers ( int flag ) { } public void checkAnnotation ( ) { } protected boolean checkDeprecation ( int commentSourceStart , int commentSourceEnd , char [ ] comment ) { } protected void checkNonExternalizedStringLiteral ( ) { } protected void checkNonNLSAfterBodyEnd ( int declarationEnd ) { <START_BUG> if ( ( ( scanner . currentPosition ) - 1 ) < declarationEnd ) { <END_BUG> scanner . eofPosition = ( declarationEnd < ( Integer . MAX_VALUE ) ) ? declarationEnd + 1 : declarationEnd ; try { while ( ( scanner . getNextToken ( ) ) != ( TerminalTokens . TokenNameEOF ) ) ; checkNonExternalizedStringLiteral ( ) ; } catch ( InvalidInputException e ) { } } } protected char getNextCharacter ( char [ ] comment , int [ ] index ) { } protected void classInstanceCreation ( boolean alwaysQualified ) { } protected final void concatExpressionLists ( ) { } private final void concatNodeLists ( ) { } protected void consumeAllocationHeader ( ) { } protected void consumeArgumentList ( ) { } protected void consumeArrayAccess ( boolean unspecifiedReference ) { } protected void consumeArrayCreationExpressionWithoutInitializer ( ) { } protected void consumeArrayCreationHeader ( ) { } protected void consumeArrayCreationExpressionWithInitializer ( ) { } protected void consumeArrayInitializer ( ) { } protected void consumeAssertStatement ( ) { } protected void consumeAssignment ( ) { } protected void consumeAssignmentOperator ( int pos ) { } protected void consumeBinaryExpression ( int op ) { } protected void consumeBlock ( ) { } protected void consumeBlockStatements ( ) { } protected void consumeCaseLabel ( ) { } protected void consumeCastExpression ( ) { } protected void consumeCastExpressionLL1 ( ) { } protected void consumeCatches ( ) { } protected void consumeCatchHeader ( ) { } protected void consumeClassBodyDeclaration ( ) { } protected void consumeClassBodyDeclarations ( ) { } protected void consumeClassBodyDeclarationsopt ( ) { } protected void consumeClassBodyopt ( ) { } protected void consumeClassDeclaration ( ) { } protected void consumeClassHeader ( ) { } protected void consumeClassHeaderExtends ( ) { } protected void consumeClassHeaderImplements ( ) { } protected void consumeClassHeaderName ( ) { } protected void consumeClassInstanceCreationExpression ( ) { } protected void consumeClassInstanceCreationExpressionName ( ) { }

Fix:
if ( ( ( scanner . currentPosition ) - 1 ) <= declarationEnd ) {